Molar solution

Molar Solution

A molar solution is a unit of concentration, denoting the number of moles of a substance that are present in one liter of solution. It is commonly used in chemistry and biochemistry to express the concentration of chemical substances in a solution.

Definition

A molar solution is defined as a solution that contains one mole of a substance dissolved in a total volume of one liter of solution. The unit of molar solution is mol/L or M. The concept of molar solution is fundamental in the field of stoichiometry, which deals with the quantitative relationships between reactants and products in a chemical reaction.

Preparation

The preparation of a molar solution involves the following steps:

1. Determining the molar mass of the substance.
2. Weighing an amount of the substance that is equivalent to its molar mass.
3. Dissolving this amount of the substance in a suitable solvent to make up a total volume of one liter.

Applications

Molar solutions are widely used in various fields of science and technology. In chemistry, they are used in titration experiments to determine the concentration of an unknown solution. In biochemistry, they are used in the preparation of buffer solutions to control the pH of a solution. In pharmacology, they are used in the preparation of drug solutions for dosage calculations.

See also

• Molarity
• Molality
• Normality
• Concentration